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md.h revision 1.4 
      1 /*	$NetBSD: md.h,v 1.4 2018/11/16 19:54:04 martin Exp $	*/
      2 
      3 /*
      4  * Copyright 1997 Piermont Information Systems Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. The name of Piermont Information Systems Inc. may not be used to endorse
     18  *    or promote products derived from this software without specific prior
     19  *    written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
     25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     31  * THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /* md.h -- Machine specific definitions for the i386 */
     36 
     37 
     38 #include <machine/cpu.h>
     39 #include <sys/types.h>
     40 #include <sys/stat.h>
     41 #include <sys/bootblock.h>
     42 #include <fcntl.h>
     43 #include <unistd.h>
     44 
     45 /* i386 uses the mbr code. */
     46 #include "mbr.h"
     47 
     48 /* constants and defines */
     49 #define	DEFUSRSIZE	0
     50 #define	DEFSWAPSIZE	(-1)
     51 #define	DEFROOTSIZE	90
     52 
     53 /* Megs required for a full X installation. */
     54 #define XNEEDMB 250
     55 
     56 #define DEBNEEDMB	1024	 /* Extra megs for debug sets */
     57 
     58 /* use UFS2 by default for ffs */
     59 #define	DEFAULT_UFS2
     60 
     61 /* have support for booting from UFS2 */
     62 #define	HAVE_UFS2_BOOT
     63 
     64 /* allow using tmpfs for /tmp instead of mfs */
     65 #define HAVE_TMPFS
     66 
     67 /* have file system specific primary boot loader */
     68 #define	HAVE_BOOTXX_xFS
     69 #define	BOOTXXDIR	"/usr/mdec"
     70 #define	BOOTXX_FFSV1	"bootxx_ffsv1"
     71 #define	BOOTXX_FFSV2	"bootxx_ffsv2"
     72 
     73 /*
     74  *  Default filesets to fetch and install during installation
     75  *  or upgrade. The standard sets are:
     76  *      base etc comp games man misc tests text xbase xcomp xetc xfont xserver
     77  */
     78 
     79 #define SET_KERNEL_GENERIC	SET_KERNEL_1
     80 
     81 #define SET_KERNEL_1_NAME	"kern-GENERIC"
     82 
     83 /*
     84  * Machine-specific command to write a new label to a disk.
     85  * For example, i386  uses "/sbin/disklabel -w -r", just like i386
     86  * miniroot scripts, though this may leave a bogus incore label.
     87  * Sun ports should probably use  DISKLABEL_CMD "/sbin/disklabel -w"
     88  * to get incore  to ondisk inode translation for the Sun proms.
     89  * If not defined, we assume the port does not support disklabels and
     90  * hand-edited disklabel will NOT be written by MI code.
     91  *
     92  * On i386, do what the 1.2 install scripts did.
     93  */
     94 #define DISKLABEL_CMD "disklabel -w -r"
     95 
     96 #define _PATH_MBR	DEFAULT_BOOTDIR "/" DEFAULT_BOOTCODE
     97 #define _PATH_BOOTSEL	DEFAULT_BOOTDIR "/" DEFAULT_BOOTSELCODE
     98 #define _PATH_BOOTEXT	DEFAULT_BOOTDIR "/" DEFAULT_BOOTEXTCODE
     99 
    100 extern struct mbr_bootsel *mbs;
    101 
    102 /* i386 can still have old mcd ISA devices */
    103 #ifdef CD_NAMES
    104 #undef CD_NAMES
    105 #endif
    106 #define CD_NAMES "cd*","mcd*"
    107 
    108 /*
    109  *  prototypes for MD code.
    110  */
    111